GB_Amateur

Quite a bit cheaper ($369 with shipping included) here in USA through Serious_Detecting.

Well, certainly if those exact targets were re-measured with these detectors. But you can get in the ballpark by comparing common coins. A USA 5-cent piece gets a dTID of 12-13 in the ML Eqx (probably closer to 13 than 12 for fresh drops) while the USA 1-cent Zincoln is 21 when freshly dropped (and goes down from there with time in the ground due to galvanic corrosion.

The N/M Legend has a fixed Iron Bias value now, pre-upgrade. You'll be able to set the detector to that value (and it likely will be a default value for some modes). Someone who doesn't want to mess with it can have his cake and those who want to change it can have theirs. It's a win-win (or maybe a tie-win 😁).

That's a different calculator than the one in your initial post, right? (The first is based on data taken in Europe, I think. At least it references a link with a prefix ".de" -- Deutschland, i.e. Germany.) The current link (quoted here in this post, from kac) looks to be North American species. But even for that, I measured a pin oak in my back yard for which I have two sources of info on its age, the most reliable being Historic Aerials (other from an arborist's estimate which is consistent). It was not there in 1965, so less than 57 years of age. Website calculator says ~92 years. My neighbor has a silver maple which also wasn't there in 1965. I could measure it, too, but I'd rather ask permission first. They'll wonder "what is that crazy metal detectorist neighbor doing now?!" if I just go over and start hugging their tree. 😁 Update: measured another tree (tulip poplar in my yard) which is also not in the 1965 aerial photo. Calculator says 79 years of age. I think both these trees were planted when or right after the house was built (1969 ==> 53 years ago.) So in my cases the calculator is high by 75% and 50% respectively. Maybe not quite that far off assuming they were saplings when put here as opposed to seeds. Rainfall (and amount of sunlight?) has to be a big factor and giving one number for a large geographic area (even if the climate determines where different species grow) likely leads to large uncertainties.

Interesting. I wonder how this translates to in-the-field difference. (Many variables there to affect things....) I like it when they allow you to push a setting past what is reasonable to use, and maybe this is what you are seeing. On the Eqx, Recovery Speed can be set from 1 to 8 but the stock programs only use {5,6,7}. I use RS=4 typically and I know some use RS=3 (Dankowski wrote about this setting) but does anyone use RS=1? And the other end of the scale, RS=8, may be overkill as well. Again, good to have the ability to push to the limit.

Is that out yet? When it happens I hope someone posts a link. Update: apparently there is some confusion on what "next video" means. Apparently someone found my request humorous so I just searched YouTube to find it. I think the followng is the one Dilek refers to in her post:

Sounds like you're on a time machine trip. Hope you took a detector with you (which one? any one)! Leave a hidden stash and let us know its location just in case you decide not to return. We'll tip a few back in your memory when we find it. 🍻

Welcome, Brett! From what I know about BC weather (not much...) I bet it takes a lot of turns. Are you in or close to the mountains? Do you have to await spring thaw before going out for gold? You live in a beautiful province with lots of excellent locations -- good fortune in recovering some as soon as the conditions cooperate.

I like the concept and understand the reason you posted it as I often want to use this info to age a site, etc. However, their selection of trees is limited and after doing two test queries, I'm skeptical of their answers. If it weren't raining outside I'd go measure a couple old trees for which I know the age, to get a better test. When it stops raining I'll do that.

One more goodie disguized as a Stinkin' Zincoln. 😏 (Just finished watching episode 2 on History Channel about the man himself...) And your dime/2 is even from first half of 19th Century -- very nice! Do you remember how deep it was?

That sand sure likes to hide old coins. I'm glad you have the (physical and mental) strength plus perseverance to harvest them. Hope you get back there in low tide to find some gold.

I'm starting to understand why MD companies don't respond to customers. Anything you say will get interpreted multiple ways, with some people reading what they want to into what is said. ("She wouldn't have said that if xyz wasn't the case and she's afraid to say that...") I don't know if this Whac-a-Mole response is going to work. I haven't seen much from either XP or Minelab from all the misuse of their settings, etc. in recent comparison videos. Maybe just let things take their course and sort themselves out. But of course she should do what she thinks is the best course-of-action. She's in the driver's seat. (I think I'll stop now before I bury myself in cliche's. 😁)

Idiot proofing underestimates the idiocy capability of idiots, to the detriment of everyone else.

Well thought out and written report. Not only don't I have one in my hands nor on order, but I've never even held a Deus 1 let alone detected with one. (I've only seen a couple from a distance.) So it will/would take me a lot of learning to figure a Deus 2 out, not that I wouldn't be willing to do that. It took me a long time (over 2 years) to really get comfortable with the Equinox, even though it was certainly producing for me. I expect if I get a Deus 2 the learning phase will be comparable. I have some sites similar to yours and I also use those, as you do, to give a new detector a workout. The trashy sites are obviously the most demanding so that's where I'm most interested in reading and watching reports. Thanks for yours. Bottom line is that if I had a Deus 2 in my hands I would have tried it out just like you did. I'm sure you are only going to get more proficient with it while simultaneously making more good finds, as you've already done.

How mineralized is your soil? What gain(s) were you running? A 4" coin not signalling in any default program except beach??

That sounds more than just outside the box.

Because of their shapes, the ID will vary by orientation. I don't know if anyone has gone to the trouble of measuring dTID's as a function of orientation -- seems like at best an academic exercise. I would think both relic hunters and native gold detectorists would be most likely to find them, and those people are averse to discrimination since their targets of interest typically overlap bullets, casings, cartridges... -- the items you ask about.

What is the falloff with distance for these two EMI sources you mention -- Wifi and cellphones? If a detectorist is having trouble with his/her cellphone there is an easy solution. You mention the ML Equinox as having particular issues with nearby Wifi and cellphones. I don't notice that too much in parks I've hunted, including when others are nearby. The park I hunted most of Autumn 2021 had residences on two sides and industry on one side. On the N side (where there were residences) I did get some EMI when I was within about 75 m distance, but on the S side (more residences) I could get as close as ~30 m and still have no EMI issues. That sounds like a Wifi issue, but it wasn't so bad I had to go to single frequency -- just turned down the gain from 23 to 18-20. The park I hunted most of 2020 was more isolated and except for power lines (see below), I had no EMI issues. As far as cellphone (specifically smartphones as my dumbphone is always in my pocket and never gives me trouble), I don't pick those up in parks even when I'm near (say25-30 m) other park users. Even when people walk by (within a few meters) I don't notice interference. When I've had trouble with EMI in parks, it seems to be from local power lines (not the HT tall towers but those very close to residences/businesses/etc.) and again, distance is a big help. Worst is when I'm in a curb strip and the lines are buried within a couple meters of the surface. Those are the times I may have to go to single frequency on the Equinox. My worst ever EMI experience was at a residence whose power line to the house was underground. No way I could use SMF modes in that location. Finally, a couple caveats: All of my EMI awareness is when the detector is sounding off. I've never investigated the silent EMI issue so I suppose I still may be suffering from that even when my detector is quiet as a mouse. I do run lower recovery speeds (usually 4 on the 800 model) than many and I've noticed lower recovery speeds are less susceptible to EMI, in audio. But since recovery speed is post-reception processing, in software (right?), that may be a case where it's still hindering detection, but just making it less noticeable.

When I've had uncancellable EMI problems with the Eqx, {10 kHz, 15 kHz, 20 kHz} were typically the quiet single frequencies. When especially bad broadband noise, the higher among those the better. EMI problems seemed to be worst before the 2.x update. And the 3.x update included 4 kHz which also turns out to be quiet often when multifrequency isn't. (That was as advertised.) If EMI isn't too bad, multiple detectors (including single frequency units) can operate when swung, much less noticeable than when held still. Of course in those cases when you stop to dig the target, the sounds can drive you batty! Now that I've found out about silent EMI, though, I'm wondering what I may be losing even after a successful Eqx noise cancel.... (Not meaning to hijack this thread, but it sounded like the two detectors are exhibiting similar problems & solutions.)

Can you explain why that is the case? For starters, I don't even understand why there would be fewer rocks in view in the lakebed. Is that because silt has covered most of them? But then why wouldn't it do the same for a meteorite? (Obviously I'm missing something, which I think I just proved.) I like your magnet method -- doesn't require batteries. 😁

There were hardware changes??

I'm not talking about intentional deception. I'm talking about common scientific practice -- having a control as well as showing the setup conditions (in this case a tape measure, etc. to show the depth of the target). There have been times where I failed to run a control sequence, or only did it as an afterthought, and realized I was hearing something without the target present that sounded the same as with the target present. As far as "anyone who has a gpx...", I hope your video isn't just for those viewers. If there were a piece of iron in the ground that you were not aware of, you would have known that when sweeping with your target in place? You made a good video at the 90% level. It's just that the 10% you left off are, for me, critical to being able to draw a conclusion. I've wondered how well a good PI with large coil would compare in depth to a 2-box detector, and your video goes in the direction of answering that.

I, for one, am often left wondering how much or even if what we post here is seen by the detector manufacturers. In the case of Nokta Makro, there is no doubt. Thanks for paying attention, Dilek (and crew there at N/M).

Thanks for the explanation, Jeff. There certainly were extreme's of dTID's with the Deus 2 in some cases -- 90's in some directions and single digits in other directions. I get this sometimes in my moderately mineralized (Fe3O4) ground which I interpret as iron targets (e.g. nails). It's why I cringe when people give advice "only dig if you get good signals in both directions". That advice has cost me but finally I figured out not to trust it, and it's produced more good finds. Your (plural) nasty soil is one more complication and what separates the experts from the also-rans.

Two problems: 1) how do we know there isn't a signal when the target is removed? 2) How do we know how deep the targets are? I don't want someone telling me, I want to see it in the video! This is so basic and yet we see video after video of failure to do one or the other. All this (digging, testing, and videoing) work they invest but they leave us wondering.